5mW Laser Level Tape Measure
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Prolonged exposure to green laser pointer can alter and have a diminishing effect on a person's perception of the color green. Patients who were treated for being exposed too long to intense blue laser light in the milliwatt range were only able to perceive the green color in a period of about 4-6 months.
The blue wavelength can cause a distinct biochemical action in the release of free radicals which are then effectively absorbed by red blood cells in the capillaries. Blue laser light, 445nm or 470nm is absorbed more effectively by retinal tissue compared to 532nm green or 650nm red laser light.
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